| ??? 04/15/09 21:34 Read: times |
#164636 - Yes but - it also happens in the real hardware Responding to: ???'s previous message |
The real hardware has the RXD line connected to a transistor which seems to work fine.....
Nah just kidding, it is correctly connected to a lovely MAX3232ECAE (a 3v3 MAX232) so the input would be held in the correct state, by this device. So since it is happening on the real hardware and the emulator, and RI is getting set immediately after EA is enabled, I don't think that this is the input flickering all over the place, (RI would be set more randomly?) Regards Marshall |
| Topic | Author | Date |
| RI always set after EA Set | 01/01/70 00:00 | |
| I don't know, but... | 01/01/70 00:00 | |
| your application should be designed so as to be tolerant | 01/01/70 00:00 | |
| Check if the Rx pin is pulled low? | 01/01/70 00:00 | |
| Ports are set as: | 01/01/70 00:00 | |
| without looking at the datasheet, I can say it is wrong | 01/01/70 00:00 | |
| Why? | 01/01/70 00:00 | |
| I did not clean my glasses | 01/01/70 00:00 | |
| Config Registers | 01/01/70 00:00 | |
| Check the BR and FE bits in SSTAT. | 01/01/70 00:00 | |
| Yes they are set - Why? | 01/01/70 00:00 | |
| When do you start the BRG? | 01/01/70 00:00 | |
| BRG set as part of UART Init (before EA) | 01/01/70 00:00 | |
| I would... | 01/01/70 00:00 | |
Thanks - Done | 01/01/70 00:00 | |
| aren't the LPC9xx's pins... | 01/01/70 00:00 | |
| Yes but - it also happens in the real hardware | 01/01/70 00:00 | |
| the point of asking nonsense questions... | 01/01/70 00:00 | |
| Understood, appreciate being 2nd guessed | 01/01/70 00:00 | |
| The Teddy Bear Effect | 01/01/70 00:00 |